Grafton township

County:: Jersey County
County Seat:: No
Area (mi²):: 35.688
State:: Illinois

Grafton township is located in Jersey County, Illinois. Grafton township has a 2025 population of 57,503. Grafton township is currently growing at a rate of 0.37% annually and its population has increased by 1.88% since the most recent census, which recorded a population of 56,441 in 2020.

The average household income in Grafton township is $149,777 with a poverty rate of 3.41%.The median age in Grafton township is 40 years: 40.1 years for males, and 40 years for females.

Demographics

The racial composition of Grafton township includes 80.41% White, 6.92% Asian, 3.2% Black or African American, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	45,613	80.41%
Two or more races	4,019	7.08%
Asian	3,925	6.92%
Black or African American	1,816	3.2%
Other race	1,226	2.16%
Native American	129	0.23%

Grafton township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grafton township's average per capita income is $68,438. Household income levels show a median of $127,162. The poverty rate stands at 3.41%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$162,270	-
Families	$149,586	$167,911
Households	$127,162	$149,777
Non Families	$59,860	$72,908

$68,438

Average Income

$127,162

Median Household Income

3.41%

Poverty Rate